Such titles are always significant, Biblically, because they tell us how God Himself sees the person He has so graciously addressed.
Millions, tens of millions have called her "Blessed," as she prophesied that we would. (But some people never tire of calling her "Sinner Mary"!)
TITLES? He called Abraham a 'man of faith'. Does that mean no other man had faith?
'God is no respector of persons'. He died for ALL and shed ALL His Blood. So in His sight ALL needed it. There are NO exceptions. Remember that - and that should clear up bad teaching. Bad teaching goes against The Word. You can't have both and expect to be doing the will of The Father which is to hear and obey HIS WORD.
'Someone told JESUS, “Your mother and brothers are standing outside, wanting to speak to You.” He replied to him, “Who is my mother, and who are my brothers?”
'Pointing to His disciples, He said, “Here are My mother and My brothers. For whoever does the will of My Father in heaven is My brother and sister and mother.”
Both Matthew and Mark recorded that because it was significant. That's the supernatural concept of His family, not the natural way we see things which they soon learn and we must, also, if we choose to HEAR and OBEY.
It's is 'man' who into 'favorites' and into 'titles'. The ONLY person worthy of praise is JESUS. And His Title is Savior. Keep it Truthful, Keep it Simple, Keep The WORD only.
Mary isn't a sinner because she's been saved. We know she accepted JESUS as her Savior as she is mentioned in Acts as others, also, in that room who were Holy Spirit filled. And we, also, know she did the will of The Father because she heard and obeyed HIM. 'Not my will but Your will be done.' Catholicsm refuses to do that.